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Results tagged with turbofan
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user 42636
A type of jet engine which uses two different airflow streams (one passing through the core and another blown past it by a fan) for obtaining thrust.
1
vote
What integration of aircraft propulsion would be more efficient at sea level high speed flig...
Roughly speaking a propfan would combine some of the best aspects of turbofan and turboprop in a way that would be beneficial for your project. … Comparisons between propfan and turbofan start at page 138.
It is an old paper, but check it out. …
- 30.5k
6
votes
Turbofan ‐ turboprop/shaft hybrid?
Turbojet simply relies on the high speed of the exhaust as it is, turbofan uses most of the exhaust energy to drive the fan, and turboshaft uses all of the energy from the exhaust to drive the output axle … A turboshaft run by a turbofan makes little sense. It's like running a car with an outboard motor.
What you may be thinking about is a geared turbofan. …
- 30.5k
44
votes
Accepted
Do turbofan engine cowlings dilate during spool-up?
Now that's an interesting phenomenon! I do not believe that this is a case of an illusion of any sort, or the engine dilating. What the video probably shows, is the engine slightly turning towards the …
- 30.5k
2
votes
Why don't turbofan engines have shrouds affixed to the fan blades?
To add to the fine answers:
The rotating shroud woud add extra mass, as the duct would still have to run past it. This mass would also be rotating at high speed, creating substantial gyroscopic forces …
- 30.5k
2
votes
Why was the DC-9-80/MD-80 so successful despite being obsolete almost from birth?
Regarding the aspect of obsolence: in contemporary personal land transport, the Otto engine is, by pretty much all means, obsolete. There are very few cases in which the Otto engine outperforms an all …
- 30.5k